Multilevel regression mixture analysis

Summary.  A two-level regression mixture model is discussed and contrasted with the conventional two-level regression model. Simulated and real data shed light on the modelling alternatives. The real data analyses investigate gender differences in mathematics achievement from the US National Education Longitudinal Survey. The two-level regression mixture analyses show that unobserved heterogeneity should not be presupposed to exist only at level 2 at the expense of level 1. Both the simulated and the real data analyses show that level 1 heterogeneity in the form of latent classes can be mistaken for level 2 heterogeneity in the form of the random effects that are used in conventional two-level regression analysis. Because of this, mixture models have an important role to play in multilevel regression analyses. Mixture models allow heterogeneity to be investigated more fully, more correctly attributing different portions of the heterogeneity to the different levels.     

Violence in the nursing profession: Occupational and lifestyle risk factors in Swedish nurses

Abstract

In a national study of the work environment, physical, and mental well-being of more than 2600 Swedish nurses, 30% reported having experienced violence at work. Possible association between violence and a range of occupational, demographic, and lifestyle characteristics were studied. Stepwise multiple linear and logistic regressions were used to further examine risk factors for violence. Occupational factors with significant correlations to workplace violence were nursing discipline (type of ward or facility), years of work experience, supervisory responsibilities, night work, work dissatisfaction, work-related musculoskeletal injury, and frequency of patient handling. Demographic/lifestyle factors related to violence were age, gender, smoking, coffee consumption at work, and use of alcohol to relax after work. The best fit linear regression model explained 17% of the variance in violence, 13%, of the variance in threat of violence. The logistic regression model confirmed an increased risk of violence and threats in psychiatric and geriatric settings. However, much remains unexplained about the aetiology of violencc in health carc settings. This report provides the basis for a pilot intervention study currently in progress.     

Ill health and social conditions amongst migrants and refugees—the case of Sweden

The present article delineates the state of health and socioeconomic situation of migrants and refugees in Sweden. Special attention is given to refugees. Migrants appear to have more extensive health problems and a shorter longevity span than native Swedes. The refugees constitute an especially exposed group of migrants. Experiences in the home country that relate to organised violence is a specific problem for this group. It has been estimated that 20 to 25 per cent of all adult refugees who have arrived to Sweden during the recent years have experienced torture in their native countries. Swedish migrant and refugee policy operates according to a model of decentralisation, aiming to avoid ethnic segregation in the big city areas. However, the integration policy seems, in many instances, to have had a negative affect on the situation of the refugees. During the period of time, in which the refugees wait for a residence permit, they are not permitted to work. The long period of forced inactivity—in some instances up to a couple of years—seems frequently to have aggravated the health of the refugees. In addition it appears to contribute to the ever increasing animosity towards them.     

Violence in the nursing profession: Occupational and lifestyle risk factors in Swedish nurses

In a national study of the work environment, physical, and mental well-being of more than 2600 Swedish nurses, 30% reported having experienced violence at work. Possible association between violence and a range of occupational, demographic, and lifestyle characteristics were studied. Stepwise multiple linear and logistic regressions were used to further examine risk factors for violence. Occupational factors with significant correlations to workplace violence were nursing discipline (type of ward or facility), years of work experience, supervisory responsibilities, night work, work dissatisfaction, work-related musculoskeletal injury, and frequency of patient handling. Demographic/lifestyle factors related to violence were age, gender, smoking, coffee consumption at work, and use of alcohol to relax after work. The best fit linear regression model explained 17% of the variance in violence, 13%, of the variance in threat of violence. The logistic regression model confirmed an increased risk of violence and threats in psychiatric and geriatric settings. However, much remains unexplained about the aetiology of violencc in health carc settings. This report provides the basis for a pilot intervention study currently in progress.     

Significant Conversations or Reduced Relational Capacity? Exploring Couple and Family Therapists' Expectations for Including a Client Feedback Procedure

Little information exists on the specific reflective processes that precede therapists' choice of including or not including a structured feedback procedure in their established practice. In the present study, we aim to describe and explore experienced couple and family therapists' expectations for how the comprehensive therapy feedback procedure Systemic Therapy Inventory of Change might influence their practices. Through a thematic analysis of six focus group interviews, two main themes were elicited. The first main theme involved values embedded in current practice, with the following subthemes: (1) balance between the therapist's expert knowledge and the client's experience‐based knowledge; and (2) making time to build alliances. The second main theme concerned the presumed influence on current practice, with the following subthemes: (1) ‘Systemic Therapy Inventory of Change will disturb the therapist's capacity to stay present’; (2) ‘Systemic Therapy Inventory of Change will shape conversations’; and (3) ‘Systemic Therapy Inventory of Change will contribute to increased qualitative depth’. We discuss these results in relation to the notion of Systemic Therapy Invention of Change as a ‘third party in the room’. We also discuss the results in relation to implications for collaborative practices, and for client and therapist autonomy.     

Taxes and economic behavior: Some interview data on tax evasion in Sweden

The article describes a survey carried out with a sample of 426 Swedish male adults. In telephone interviews questions were asked on attitudes to taxation, attitudes to tax crimes, the respondent's economic situation, tax evasion in the sense of underreporting income and overstating deductions, black payments, and tax planning, i.e. attempts to reduce the tax burden by legal means. Multivariate analyses of the data indicated that younger age, more opportunity for tax evasion than people in general, more negative attitudes than the average, and lenient attitudes to tax crimes were significant factors for explaining tax evasion and black payments. Financial strain was not a significant factor, since those who admitted tax evasion judged their economic situation more favorably than the rest of the sample.     

Sense of coherence during unemployment

The aim of this study was to investigate the relation between different forms of hardship during unemployment and the sense of coherence (SOC). These hardships were considered in the framework of the finances–shame model, which has been developed to help provide a greater understanding of why unemployment is so painful to some whilst others are hardly affected by it. The hypothesis in this study was that the greater the financial hardships during unemployment and the more a person has been subjected to shaming by others because they are unemployed, the lower his or her SOC will be, and vice versa. The empirical data were collected by means of a cross-sectional survey of 1,249 unemployed people in a region in southern Sweden who at the time of the survey were engaged in some form of labour-market training or workfare programme. The dropout rate was 23%. The results from the study lent strong support to the finances–shame model. Among those who were exposed to a greater degree of financial hardship and also had more shaming experiences, the mean SOC score was 42.14 for women and 42.41 for men. The corresponding figures for those facing a lesser degree of financial hardship and with fewer shaming experiences were 67.10 and 66.66 respectively, i.e. figures which are on a par with or somewhat higher than for population studies covering the whole population.     

Comments on a simple test for new better than used in expectation1 by borges,proschan and rodrigues

Procedures and tables are givenfor construction and selection of continuous sampling plans of the type CSP-2 for a given pair of conditions.     

User Involvement in Therapy: Couples' and Family Therapists’ Lived Experiences with the Inclusion of a Feedback Procedure in Clinical Practice

User involvement in therapy includes some form of feedback from the clients. The feedback guides the therapist and the clients toward a best possible result through a best possible therapy process. In recent years many different procedures for collecting feedback have been developed. In a previous study presented in this journal we explored the expectations therapists had before including the comprehensive clinical feedback procedure, Systemic Therapy Inventory of Change (STIC), in their clinical practices. Our aim with this present study is to explore couples' and family therapists’ experiences with STIC from the perspective of user involvement. We found that the term ‘using STIC’ represented many different variations both between therapists and between the families each therapist worked with. Likewise user involvement, combined with a feedback procedure like STIC, was also a many faceted area. We discuss how therapists’ experiences may relate to the different aspects of user involvement in therapy.